Hardshell refers to a type of protective outer layer that is rigid and durable. It is commonly used in various products, such as luggage, outdoor gear, and protective cases. The hardshell design helps to shield contents from impacts, moisture, and other environmental factors, making it ideal for travel and outdoor activities. In the context of outdoor clothing, hardshell jackets are made from waterproof and breathable materials, providing protection against rain and wind. These jackets are popular among hikers and climbers, as they offer a lightweight yet robust barrier against harsh weather conditions while allowing moisture from sweat to escape.